Windows Defender Antivirus Network Inspection Service issues since Windows 10 2004 update

Anonymous
2020-08-06T08:15:09+00:00

I got the 2004 update yesterday and that went well enough otherwise but I am having a problem with the Windows Defender Antivirus Network Inspection Service that I did not have previously. 

  1. I noticed in Event Viewer several Errors that began immediately upon completion of the update last night: 

The Microsoft Defender Antivirus Network Inspection Service service depends on the Microsoft Defender Antivirus Network Inspection System Driver service which failed to start because of the following error: 

The supplied user buffer is not valid for the requested operation.

  1. Further inspection has revealed that there is now a problem with Real Time Updates. 

Microsoft Defender Antivirus Real-Time Protection feature has encountered an error and failed.

  Feature: Network Inspection System

Error Code: 0x8007042c

Error description: The dependency service or group failed to start. 

Reason: The system is missing updates that are required for running Network Inspection System.  Install the required updates and restart the device.

I've got this error repeatedly (3002). 

  1. I went into security and maintenance to see what was going on with my security settings. That is not showing anything "wrong." 
  2. The Network Inspection Service is configured to manual, not automatic. I can't change this. 
  3. Real-time protection is on, and has been on. On Virus & threat protection settings, all of those are still toggled on, and those settings are the same before and after the upgrade. I haven't tried turning them on and off again yet. 
  4. I already did the August Safety scan, but I downloaded a fresh copy and am re-running it. 
  5. I did dism and sfc checks and they showed no problems that needed repair. 

Something is definitely wrong with the install of Windows Defender tho... Help? How do I fix this and stop the errors and get it reconfigured properly. Do I have to reinstall it?

Windows for home | Windows 10 | Security and privacy

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  1. Anonymous
    2020-08-12T22:02:49+00:00

    After updating to Platform 4.18.2008.4, alongside with KB 4566782, the error messages stopped, the Windows Defender Antivirus Network Inspection Service is up and running on my system. Core isolation is on.

    I don't know where to find the update (tried searching microsoft web site).  I don't know if these are applicable to Windows 1903.  Should't these be updated automatically if they apply to my system?  The notes on KB4566782 seem to imply it was included in the August 11 update, which I do not have yet.  Is the Antimalware Client Version 4.18.2008.4 in that update?  If not, does it apply to my system, and if so, where exactly do I get it, and why was it not part of the "normal" update process?

    Go into the Windows Search bar / Cortana and type Update, or however you navigate to Windows Update, and force a manual check for updates. It may take a little bit for your machine to be ready but that's how I did it. When I booted this morning, I had no updates when I opened it initially. Forced a check, and it found 3, a .Net update, the monthly rollup, and a defender antivirus definition file.

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  2. Anonymous
    2020-08-12T22:00:49+00:00

    After updating to Platform 4.18.2008.4, alongside with KB 4566782, the error messages stopped, the Windows Defender Antivirus Network Inspection Service is up and running on my system. Core isolation is on.

    I was very hopeful seeing your reply, thinking perhaps it might be fixed with the monthly rollup ... it was not. 

    Enabling Core Isolation breaks WdNisSvc still :( for me at least.

    If you have Core Isolation on, you should open Task Manager, go to Services and if sorting by Name, look for WdNisSvc; if sorting by Description, look for Microsoft Defender Antivirus Network Inspection Service. Make sure the service is Running and not Stopped. 

    After installing the update and rebooting, I had Core Isolation off -- which makes sense. It was off. I toggled it on (because I did a clean reinstall 2 nights ago I was finally able to do this... ), and rebooted. I checked, and sure enough WdNisSvc was stopped. So I toggled Core Isolation back off and rebooted. WdNisSvc was running again. 

    I would like them both on at the same time, please......

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  3. Anonymous
    2020-08-12T20:24:37+00:00

    After updating to Platform 4.18.2008.4, alongside with KB 4566782, the error messages stopped, the Windows Defender Antivirus Network Inspection Service is up and running on my system. Core isolation is on.

    I don't know where to find the update (tried searching microsoft web site).  I don't know if these are applicable to Windows 1903.  Should't these be updated automatically if they apply to my system?  The notes on KB4566782 seem to imply it was included in the August 11 update, which I do not have yet.  Is the Antimalware Client Version 4.18.2008.4 in that update?  If not, does it apply to my system, and if so, where exactly do I get it, and why was it not part of the "normal" update process?

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  4. Anonymous
    2020-08-12T20:20:00+00:00

    I get the same with yours ...:) 

    Just click "OK" and type "Windows Defender network inspection" in the search bar. Mine comes up quickly :)

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  5. Anonymous
    2020-08-12T20:03:09+00:00

    https://aka.ms/AA98a8v needs upvotes to escalate the issue

    Tried but got a message saying "Your account doesn't have access to this feedback."

    Try mine:

    https://aka.ms/AA99m9t

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